<template>
	<!-- 音频播放器组件 -->
	<view v-if='url' class='flex justify-between align-center audio' style="width: 622rpx;background: rgba(143,228,255,0.27);">
		<!-- <view class='mr-3'  @click='start(audioId)'>
			<image :src='startPic' class='icon' v-show='!status'></image>
			<image :src='endPic' class='icon' v-show='status'></image>
		</view> -->
		<view class="yuan flexcen"  v-show='!status' @click='start(audioId)'>
			<u-icon name="play-right-fill" color="#ffffff" size="38"></u-icon>
		</view>
		<view class="yuan flexcen" @click='start(audioId)' v-show='status'>
			<u-icon name="pause" color="#ffffff" size="38"></u-icon>
		</view>
		<view class='flex-1'>
			<slider  @change='changeAudio' :activeColor='activeColor' :min='0' :max='duration.toFixed(0)' :value=' currentTime != 0 ?currentTime.toFixed(0):0' :step='0.1'></slider>
		</view>
		<view class='ml-3' style="color: #fff;">{{ currentTime != 0 ?getTime(Math.round(currentTime)):getTime(Math.round(dura))}}</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				context: null,
				currentTime: 0,
				duration: 100,
				status: false
			}
		},
		props: {
			url: String,
			activeColor: {
				type: String,
				default: '#1c4c0c'
			},
			startPic: String,
			endPic: String,
			audioId: [String,Number],
			dura:[String,Number]
		},
		created() {
			this.context = uni.createInnerAudioContext();
			this.context.src = this.url;
			this.duration = this.dura;
			this.onTimeUpdate();
			this.onCanplay();
			this.onEnded();
			uni.$on('stop',(id)=> {
				if(id && id != this.audioId) {
					this.context.stop();
					this.status = false;
				} else if(!id){
					this.context.stop();
					this.status = false;
				}
			})
		},
		methods: {
			start(id) { //点击播放
				let audioId = id;
				if(this.status) {
					this.context.pause();
					this.status = !this.status;
				}else {
					uni.$emit('stop',id)
					this.context.play()
					this.status = !this.status;
				}
			},
			onCanplay() { //进入可播放状态
				this.context.onCanplay(() => {
					this.context.duration;
					setTimeout(()=>{
						if( this.context.duration !=Infinity &&  this.context.duration > 0){
							this.duration = this.context.duration;
						}
					},1000)
				})
			},
			onTimeUpdate() { //音频播放进度
				 this.context.onTimeUpdate(() => {
					 if (!Number.isFinite( this.context.duration)) {
						this.currentTime = Number.MAX_SAFE_INTEGER;
						this.currentTime = this.context.currentTime;
					 } else {
						 this.duration = this.context.duration;
						 this.currentTime = this.context.currentTime;
					 }
				 })
			},
			onEnded() { //播放结束
				this.context.onEnded(()=> {
					this.status = false;
					this.currentTime = 0;
				})
			},
			changeAudio(e) {
				let paused = this.context.paused;
				this.context.pause();
				this.context.seek(e.detail.value)
				if(!paused) {
					this.context.play();
				} 
			},
			getTime(time) {
				let m = parseInt(time / 60);
				let s = time % 60;
				return this.towNum(m) + ':' + this.towNum(s);
			},
			towNum(num) {
				if(num >= 10) {
					return num;
				}else {
					return '0' + num;
				}
			}
		}
	}
</script>

<style>
	.audio {
		/* background: #F4F4F4; */
		padding: 20rpx 0 ;
		padding-right: 20rpx;
	}
	
	.icon {
		width: 80rpx;
		height: 80rpx;
	}
	
	.flex {
		display: flex;
		flex-direction: row;
	}
	
	.justify-between {
		justify-content: between;
	}
	
	.align-center {
		align-items: center;
	}
	
	.flex-1 {
		flex: 1;
	}
	
	/* .ml-3 {
		margin-left: 30rpx;
	}
	
	.mr-3 {
		margin-right: 1rpx;
	} */
	.yuan {
		background: linear-gradient( 139deg, #8FE4FF 0%, #008FD7 100%);
		width: 88rpx;
		height: 88rpx;
		border-radius: 50%;
	}
</style>
